SettingUpClientServer (#7)

Reviewed-on: #7

src/core/ExecutionContext.py

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+class ExecutionContext:
+    pass

src/core/Sheerka.py

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+class Sheerka:
+    pass

src/core/global_symbols.py

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+class CustomType:
+    """
+    Base class for custom types used in Sheerka
+    A custom type is a type that has only one instance across the application and have a semantic meaning
+    For example the type 'None' is a singleton which have a semantic meaning.
+    We need to define others in Sheerka
+    """
+
+    def __init__(self, value):
+        self.value = value
+
+    def __repr__(self):
+        return self.value
+
+    def __eq__(self, other):
+        return isinstance(other, CustomType) and self.value == other.value
+
+    def __hash__(self):
+        return hash(self.value)
+
+
+class NotFoundType(CustomType):
+    """
+    Using when an entry in not found in Cache or in sdp
+    """
+
+    def __init__(self):
+        super(NotFoundType, self).__init__("**NotFound**")
+
+
+NotFound = NotFoundType()

src/core/utils.py

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+def get_class(qname):
+    """
+    Loads a class from its full qualified name
+    :param qname:
+    :return:
+    """
+    parts = qname.split('.')
+    module = ".".join(parts[:-1])
+    m = __import__(module)
+    for comp in parts[1:]:
+        m = getattr(m, comp)
+    return m
+
+
+def get_full_qualified_name(obj):
+    """
+    Returns the full qualified name of a class (including its module name )
+    :param obj:
+    :return:
+    """
+    if obj.__class__ == type:
+        module = obj.__module__
+        if module is None or module == str.__class__.__module__:
+            return obj.__name__  # Avoid reporting __builtin__
+        else:
+            return module + '.' + obj.__name__
+    else:
+        module = obj.__class__.__module__
+        if module is None or module == str.__class__.__module__:
+            return obj.__class__.__name__  # Avoid reporting __builtin__
+        else:
+            return module + '.' + obj.__class__.__name__